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CVE-2023-0464

Excessive Resource Usage Verifying X.509 Policy Constraints PUBLISHED

Description (CNA)

A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.

Affected (CNA)

Vendor / productVersions
OpenSSL / OpenSSLaffected 3.1.0 before 3.1.1; affected 3.0.0 before 3.0.9; affected 1.1.1 before 1.1.1u; affected 1.0.2 before 1.0.2zh

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.

siemens-SADP

No English description supplied.